.circle-button {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    padding: 0;
}

.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1050;
    background-color: #343a40; /* Bootstrap dark background */
    color: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1.5rem;
    height: 56px;
}